How to upload images from react native to an express backend? - express

Question

I followed this example to upload images to my backend. https://github.com/expo/image-upload-example
The code I use in my RN application is:
let formData = new FormData();
formData.append('name',this.state.name);
formData.append('description',this.state.description);
formData.append('price',this.state.price);
formData.append('oprice',this.state.oprice);
let fileArr = (this.state.image).split('.');
let type = fileArr[fileArr.length -1]
let uri = this.state.image
formData.append('photo',{uri, name: `${this.state.name}.${type}`, type: `image/${type}`});
console.log(formData);
AsyncStorage.getItem('jwt', (err, token) => {
fetch('http://192.168.1.83:8000/ShopRouter/deal', {
method: 'POST',
headers: {
Accept: 'application/json',
Authorization: token,
'Content-type': false
},
body: formData
})
The code I use for my express backend is:
app.post('/ShopRouter/deal', passport.authenticate('jwt2', {session:false}), function(req,res) {
upload(req, res, function(err) {
if (err) {
console.log(err);
}
console.log(req.file);
console.log(req.files);
console.log(req.photo);
console.log(req.body.name);
console.log(req.body.description);
My Multer configuration is:
var storage = multer.diskStorage({
destination: function (req, file, cb, err){
console.log(file)
if (err){
console.log(err)
}
cb(null, './uploads/')
},
filename: function (req, file, cb) {
console.log(file)
cb(null, file.originalname + '-' +Date.now())
}
});
var upload = multer({ storage: storage }).single('photo');
The line console.log(file) prints
{ fieldname: 'photo',
originalname: 'An empty bottle .jpg',
encoding: '7bit',
mimetype: 'image/jpeg' }
I;m not sure why the backend receives this without the uri of the image, nothing gets saved in the upload folder
req.file comes back undefined.

Answer 1

I sorted this out by just uploading the images to s3